CentOS Errata and Enhancement Advisory 2016:0154 

Upstream details at : https://rhn.redhat.com/errata/RHEA-2016-0154.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( sha256sum Filename ) 

i386:
c8ced0767945e5477714ec732b38617abfae699b05c21ae1aea3a6c50bad79fd  tzdata-2016a-2.el6.noarch.rpm
fb86a5d4c4786e28664331099267f4a1fe295619dd59c2d8fc4c4aa21cff2651  tzdata-java-2016a-2.el6.noarch.rpm

x86_64:
c8ced0767945e5477714ec732b38617abfae699b05c21ae1aea3a6c50bad79fd  tzdata-2016a-2.el6.noarch.rpm
fb86a5d4c4786e28664331099267f4a1fe295619dd59c2d8fc4c4aa21cff2651  tzdata-java-2016a-2.el6.noarch.rpm

Source:
9f050dfb59da89c8274e4884900f7a39ea87ffa76db8065c538cd6aeee3e0c25  tzdata-2016a-2.el6.src.rpm